Four seafarers on the Liberian-flagged, Greek-operated bulk carrier Eternity C were killed in a drone and speedboat attack off Yemen, an official with knowledge of the issue said on Tuesday.

Another Greek-owned cargo ship was attacked in the Red Sea on Monday, resulting in at least two crew members wounded and another two missing.

Two crew members of a Liberian-flagged cargo ship have been killed in an attack in the Red Sea off the coast of Yemen, Liberia says. A Liberian representative to the International Maritime Organization (IMO) said the Eternity C was "attacked